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作者:M. K. Roy , A. L. Chandra
来源:[J].Folia Microbiologica(IF 0.791), 1976, Vol.21 (1), pp.50-53
摘要:Abstract(#br)An antibiotic designated Ass was isolated from a soil streptomycete -which showed wide antibacterial activity. The antibiotic was extracted and purified into a yellow powder. Its physico-chemical and antimicrobial properties indicated that it is a novel peptide antib...
作者:... R. S. Prakasham , M. K. Roy , A. C. Ghosh
来源:[J].Folia Microbiologica(IF 0.791), 1997, Vol.42 (3), pp.211-213
摘要:Abstract(#br)The role of sesame oil as part of the carbon source on growth and cephalosporin C production by Cephalosporium acremonium was studied in shake-flask fermentation. The growth and antibiotic production were maximum on the fifth and sixth day, respectively, irrespe...
作者:... M. G. Pathak , T. C. Bora , M. K. Roy
来源:[J].Folia Microbiologica(IF 0.791), 1998, Vol.43 (1), pp.27-30
摘要:Abstract(#br)Mixed bacterial culture consisting of three different strains of Micrococcus sp. (AG 36, AG 94 and AG 98) and two strains of Pseudomonas sp. (AG 7 and AG 52) and its individual components was passed through a sand column and 25.5–92% of cell dry mass was found t...
作者:... G. Bhowmick , M. K. Roy , A. C. Ghosh
来源:[J].Folia Microbiologica(IF 0.791), 1997, Vol.42 (4), pp.333-336
摘要:Abstract(#br)Incubation of ampicillin with whole cells of Streptomyces sp. DRS-1 resulted in accumulation of four compounds different from ampicillin. One of them was isolated, purified and partially characterized. On the basis of spectroscopic characteristics, R F value and anti...
作者:... B. Kumari , T. C. Bora , M. K. Roy
来源:[J].Folia Microbiologica(IF 0.791), 1997, Vol.42 (6), pp.574-576
摘要:Abstract(#br)Two plasmid-harboring strains of Micrococcus sp. (M-36 and AG-43) degrade malathion and chlorpyriphos. Derivatives of the strains (SDS-36 and AO-43) treated with acridine orange and sodium dodecyl sulfate could not utilize malathion and chlorpyriphos for growth ...
作者:... A. Guha , T. C. Bora , M. K. Roy
来源:[J].Folia Microbiologica(IF 0.791), 1998, Vol.43 (1), pp.23-26
摘要:Abstract(#br) B. stearothermophilus strain AG-49, when cultivated in mineral medium in the presence of silica (SA), adhered to SA. Adhesion depended on age of culture, contact time and glucose concentration of the culture medium. Mid-exponential phase culture (5 h) required minim...
作者:... A. Guha , M. K. Roy , A. C. Ghosh
来源:[J].Folia Microbiologica(IF 0.791), 1998, Vol.43 (4), pp.379-382
摘要:Abstract(#br) In vitro transformation of ampicillin to cephalexin was studied using calcium alginate-immobilized and free Streptomyces sp. strain DRS-1 packed in glass columns. Tris-HCl buffer containing ampicillin was continuously circulated through the columns for four cycles, ...
作者:... A. Choudhury , B. G. Unni , M. K. Roy
来源:[J].Folia Microbiologica(IF 0.791), 2002, Vol.47 (4), pp.379-384
摘要:Abstract(#br)Several known outer membrane permeabilizers increased susceptibility of a highly resistant pathogenic strain Pseudomonas aeruginosa to different antibiotics and plant extracts. Of all the chemicals tested, EDTA, sodium citrate and sodium hexametaphosphate (HMP) were ...
作者:D. Thakur , M. K. Roy , T. C. Bora
来源:[J].Biotechnology Letters(IF 1.853), 2009, Vol.31 (7), pp.1059-1064
摘要:Abstract(#br)Cell-free extracts of Streptomyces sp. DRS I converted ampicillin to cephalexin, presumably due to the activity of the enzyme, expandase. The extract was fractionated and characterized by colorimetric and chromatographic measurements coupled with disc-agar diffusion ...
作者:... J. Ramkumar , H. Chelladurai , M. K. Roy
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2018, Vol.40 (9), pp.44-48
摘要:Abstract(#br)In manufacturing industries, machining is considered as one of the most significant and effective processes. During machining process, cutting zone experiences the higher temperature due to friction between the chip-tool and work-tool interfaces, which directly ...

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